Note that the dry part of the tissue helps remove acetone residue. Lower the lens tissue onto the optic and pull it over the surface. Hold a piece of lens tissue above the mirror and place a few drops of acetone on the paper.

Always hold the optic at its edge or place on a clean drywork surface on a lens tissue.

Acetone and the 'drop and drag' technique are recommended.

After the above preparatory cleaning, (which is not always necessary), the optic is ready for a final cleaning.

When complete wipe with clean white tissue. A finger inside a latex glove is a useful tool for stubborn marks. Gently flush the part with the solution being careful not to abrade the surface. This may be done by washing in soapy warm water using a mild liquid detergent, or acetone.

Completely remove all excessive amounts of oil, grease, dirt and other contaminants.

The coatings on the silica optics commonly used with high power Nd:YAG lasers are very durable and usually harder than the substrates themselves.

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Wii clean laser lens